2143669840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{66491}}^1$

素因数の和:66548

約数の個数: 80

約数和(自身を含む): 5540645376

約数和(自身を除く): 3396975536

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 16120, 32240, 66491, 132982, 265964, 332455, 531928, 664910, 864383, 1063856, 1329820, 1728766, 2061221, 2659640, 3457532, 4122442, 4321915, 5319280, 6915064, 8244884, 8643830, 10306105, 13830128, 16489768, 17287660, 20612210, 26795873, 32979536, 34575320, 41224420, 53591746, 69150640, 82448840, 107183492, 133979365, 164897680, 214366984, 267958730, 428733968, 535917460, 1071834920, 2143669840]

約数ペア:

[(1, 2143669840), (2, 1071834920), (4, 535917460), (5, 428733968), (8, 267958730), (10, 214366984), (13, 164897680), (16, 133979365), (20, 107183492), (26, 82448840), (31, 69150640), (40, 53591746), (52, 41224420), (62, 34575320), (65, 32979536), (80, 26795873), (104, 20612210), (124, 17287660), (130, 16489768), (155, 13830128), (208, 10306105), (248, 8643830), (260, 8244884), (310, 6915064), (403, 5319280), (496, 4321915), (520, 4122442), (620, 3457532), (806, 2659640), (1040, 2061221), (1240, 1728766), (1612, 1329820), (2015, 1063856), (2480, 864383), (3224, 664910), (4030, 531928), (6448, 332455), (8060, 265964), (16120, 132982), (32240, 66491)]